Infectious Disease

An Infectious Disease is caused by a pathogen that either is sourced from among one's own normal microbiota, is acquired from another infected individual, or instead is acquired from the environment (particularly other than from a conspecific).

Note than not all pathogens are transmitted to hosts but instead can cause disease via a transmission of their products, notably toxemias caused by exposure to bacterialexotoxins, e.g., staphylococcal food poisoning.

The following is a list of a small subset of infectious diseases and related concepts: